package org.example._01_hello;

import com.alibaba.fastjson.JSON;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;

public class SyncProducer {
	public static void main(String[] args) throws Exception {
    	// 实例化消息生产者Producer
        DefaultMQProducer producer = new DefaultMQProducer("wolfcode-producer");
    	// 设置NameServer的地址
		producer.setNamesrvAddr("127.0.0.1:9876");
    	// 启动Producer实例
        producer.start();
    	for (int i = 0; i < 100; i++) {
    	    // 创建消息，并指定Topic，Tag和消息体
    	    Message msg = new Message("04-producer-type" /* Topic */,
        	"TagA" /* Tag */,
        	("Hello RocketMQ " + i).getBytes("utf-8") /* Message body */
        	);
        	//发送同步消息到一个Broker
            SendResult sendResult = producer.send(msg);
            // 通过sendResult返回消息是否成功送达
            System.out.println(JSON.toJSONString(sendResult));
    	}
    	// 如果不再发送消息，关闭Producer实例。
    	producer.shutdown();
    }
}